# subagentevaluations.com — the Evaluation primitive

> A durable, evidence-based evaluation history generalized from the real Managed Agents outcome-evaluation event schema (span.outcome_evaluation_start/_ongoing/_end): a grader scores an artifact against a rubric and returns a result plus explanation.

## API
- GET /api/evaluations — list all evaluations, filterable by ?target_site= and ?result=
- GET /api/evaluations/:id — fetch one evaluation by id
- POST /api/evaluations — create an evaluation (gated by EVALUATIONS_WRITE_SECRET)
- GET /api/changes — newest-first change feed (?cursor=&limit=) for polling agents
- POST /mcp — Streamable-HTTP MCP endpoint (initialize / tools/list / tools/call get_evaluations); server card at /.well-known/mcp/server-card.json

## Grounding
Generalized from the span.outcome_evaluation_start/_ongoing/_end grader-event schema: a grader scores an artifact against a rubric and returns a result plus explanation.
Canonical source: https://platform.claude.com/docs/en/managed-agents/define-outcomes.md

## Family
This site is one of the Cloudflare Workers in the subagent*.com family. For the
live, machine-readable directory of every sibling domain, Cloudflare zone ID,
and worker binding, fetch:
https://subagentsubdomains.com/api/dns-zones

For a unified catalog of every API route across every primitive in the family:
https://subagentapi.com/api/catalog